What's the term for when the pursuit of knowledge is regarded as the highest morality? That's where I mostly get my meaning at least.

In Stoic virtue ethics, practical wisdom (phronesis) is the central virtue. But it doesn’t mean pursuing book knowledge, it means learning how to handle, think about and navigate all aspects of life well. In short, how to live “the kind of life worth living” (eudaimonia).

Ah yes, the Stoic 'considered life', exactly. I recommended Derren Brown's book 'Happiness' if anyone is interested in that.

There might not be one because a morality requires considering others, but simply pursuing knowledge does not. Unfortunately, you’ll soon have to reckon with how that knowledge affects your actions in order to call it a morality.